Negative/Negative

Date: 8/5/96 at 11:29:51
From: Doctor Anthony
Subject: Re: Negative/Negative
Why is a negative divided by a negative positive.
Example: (-10)/(-5) = +2
Consider (-10)/(-10) We have a rule that anything divided by itself
is 1. If this rule is to be consistent then (-10)/(-10) = 1. So for
our problem (-10)/(-5) = 2*(-5)/(-5) = 2*1 = 2. For consistency of
the rules we must have neg*neg = pos.
-Doctor Anthony, The Math Forum
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